Suppose x has a distribution with a mean of 60 and a standard deviation of 21. Random samples of size n = 36 are drawn.
(a) Describe the x bar distribution.
x bar has a normal distribution.
x bar has a Poisson distribution. 
x bar has a binomial distribution.
x bar has a geometric distribution.
x bar has an unknown distribution.
x bar has an approximately normal distribution.
Compute the mean and standard deviation of the distribution. (For each answer, enter a number.)
(b) Find the z value corresponding to x bar = 67. (Enter an exact number.)
(c) Find P(x bar < 67). (Enter a number. Round your answer to four decimal places.) (d) Would it be unusual for a random sample of size 36 from the x distribution to have a sample mean less than 67? Explain. What percentage of the area under the normal curve lies as given below? (a) to the right of μ (Enter an exact number.) (b) between μ ˆ’ 2σ and μ + 2σ (Enter an exact number.) (c) to the right of μ + 3σ (Enter a number. Use 2 decimal places.) Suppose that many samples are taken from a population whose mean is 80. Ass the size of each sample increases, the mean would approach which of the following values? 72, 76, 80, 84. I do not quite follow the question Trying to find the missing variable cost for a kennel attendant who makes 11.50 per hour works 22 hours a month 8 hours a day. McDonalds current price of $50. It also has 500 million shares outstanding and the market value of debt is $10,500 million. The companys equity beta is 0.70. Its tax rate is 15%. Assume that the risk-free rate is 2.0% and the market return is 12%. The companys cost of debt is 4.5%. a. Compute the weighted average cost of capital (WACC) for McDonalds. b. If an investment project generates a return of 10% and has similar risk level as the overall company, should McDonalds accept this project? Why or why not? Which one of the following statements about intentional killing of a fetus is correct? A. It's not a crime in any state. B. It's a crime in some states. C. It's a capital offense in all states. D. It's murder under common law. XYZ Co. has forecasted June sales of 600 units and July sales of 1000 units. The company maintains ending inventory equal to 125% of next month's sales. June beginning inventory reflects this policy. What is June's required production? please show me how to calculate